A second species of Neoheteroceras and additional characters of the genus

A coelomycetous fungus occurring on submerged wood in Japan is described and illustrated as a new species of Neoheteroceras. The species is characterized by the large falcate conidia with several tubular appendages, but differs from N. flageoletii, the only other known species of the genus, by its larger conidia and longer appendages. The description of the genus Neoheteroceras should be emended to allow for this second species, N. macrosporum, which differs from the original species by the nature of the disposition of the conidiomata, branched conidiophore, and absence of paraphyses.